Spin pumping into superconductors: A new probe of spin dynamics in a superconducting thin film
arXiv:1704.04303 · doi:10.1103/PhysRevB.96.024414
Abstract
Spin pumping refers to the microwave-driven spin current injection from a ferromagnet into the adjacent target material. We theoretically investigate the spin pumping into superconductors by fully taking account of impurity spin-orbit scattering that is indispensable to describe diffusive spin transport with finite spin diffusion length. We calculate temperature dependence of the spin pumping signal and show that a pronounced coherence peak appears immediately below the superconducting transition temperature Tc, which survives even in the presence of the spin-orbit scattering. The phenomenon provides us with a new way of studying the dynamic spin susceptibility in a superconducting thin film. This is contrasted with the nuclear magnetic resonance technique used to study a bulk superconductor.
10 pages, 8 figures
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- Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
- Enhanced DC Spin Pumping into a Fluctuating Ferromagnet near Tc
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- Thermal, electric and spin transport in superconductor/ferromagnetic-insulator structures
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- Generation of pure superconducting spin current in magnetic heterostructures via non-locally induced magnetism due to Landau Fermi-liquid effects
- Giant transition-state enhancement of quasiparticle spin-Hall effect in an exchange-spin-split superconductor detected by non-local magnon spin-transport
- Finite-frequency spin susceptibility and spin pumping in superconductors with spin-orbit relaxation
- Temperature-dependent spin-transport and current-induced torques in superconductor/ferromagnet heterostructures
- Large enhancement of spin pumping due to the surface bound states in normal metal/superconductor structures
- Magnon spin current induced by triplet Cooper pair supercurrents
- Spin-current coherence peak in superconductor/magnet junctions
- Anisotropic superconducting spin transport at magnetic interfaces
- Spin pumping between noncollinear ferromagnetic insulators through thin superconductors
- Quantum Oscillations of Gilbert Damping in Ferromagnetic/Graphene Bilayer Systems
- Ferromagnetic resonance modulation in -wave superconductor/ferromagnetic insulator bilayer systems
- Superconductivity provides a giant enhancement to the spin battery effect
- Magnetic response of Majorana Kramers pairs with an order-two symmetry
- Spin-pumping from a ferromagnetic insulator to an unconventional superconductor with interfacial Andreev bound-states
- Spin pumping as a generic probe for linear spin fluctuations: demonstration with ferromagnetic and antiferromagnetic orders, metallic and insulating electrical states
- Large spin to charge conversion in topological superconductor \b{eta}-PdBi2 at room temperature
- Superconductivity-enhanced spin pumping: Role of Andreev resonances
- Spin diffusion equation in superconductors in the vicinity of Tc
- Effect of vertex corrections on the enhancement of Gilbert damping in spin pumping into a two-dimensional electron gas
- Spin pumping in d-wave superconductor/ferromagnet hybrids
- Multi-Particle Tunneling Transport at Strongly-Correlated Interfaces
- Spin-pumping in superconductor-antiferromagnetic insulator bilayers
- Non-linear spin torque, pumping and cooling in superconductor/ferromagnet systems
- Spin current injection via equal-spin Cooper pairs in ferromagnet/superconductor heterostructures
- Spin current injection at magnetic insulator/superconductor interfaces
- Spin Hall effect generated by fluctuating vortices in type-II superconductors
- Dynamical Majorana Ising spin response in a topological superconductor-magnet hybrid by microwave irradiation
- Anisotropic spin-current spectroscopy of ferromagnetic superconducting gap symmetries
- Majorana multipole response with magnetic point group symmetry
- Spin pumping into a spin glass material
- Spin Pumping into Carbon Nanotubes
- Spin Pumping into two-dimensional systems
- Fluctuation contribution to Spin Hall Effect in Superconductors
- Time-dependent Ginzburg-Landau theory of the vortex spin Hall effect
- Spin pumping into quantum spin chains
- Acoustic spin current generation in superconductors
- AC/DC spin current in ferromagnet/superconductor/normal metal trilayer systems
- Giant oscillatory Gilbert damping in superconductor/ferromagnet/superconductor junctions